Lecture 2 - Scientific Method Flashcards
4 steps to the scientific method
Observation
Hypothesis
Experiment
Conclusion
True/False: If you can’t observe it, you can’t know anything about it.
True
Your best guess As to what it is you’re observing
Hypothesis
Step of scientific method that deals with analyzing your data
Experiment
Which step of the scientific method do we spend most of our time
Experiment
Changeable element of an experiment
Variable
3 different types of variables
Independent
Dependent
Standardized
Type of variable:
Manipulated (Placebo) (type of antibiotic)
Independent
Type of variable:
Held constant for ALL subjects (how much water, sunlight, etc) (age, sex, weight, etc)
Standardized
Type of variable:
Shows response (effectiveness of treatment)
Dependent
Which variable is the most difficult
Standardized
The number of individuals
Sample size
True/False: the > sample size = > meaningful results
True
Which step of the scientific method:
The results are analyzed and the hypothesis is supported or rejected
Conclusion
Name the step of the scientific method:
Car Scenario
Car’s not starting
Observation
Name the step of the scientific method:
Car Scenario
Turn key, observe the electricity
Jump start –> connect, time = parameters
Etc.
Experiment
Name the step of the scientific method:
Car Scenario
Right: support hypothesis
Wrong: reject hypothesis
Last and final statement
Not analysis, further observation
Conclusion
Name the step of the scientific method:
Car Scenario
Flat tire Dead battery Starter Gas Etc.
Hypothesis
True/False: the scientific method is not cyclical
False! It is cyclical
4 terms to describe the progression of the scientific method
Hypothesis
Theory
Principle
Law
Which progression of scientific method:
Thoroughly tested why
Theory
Which progression of scientific method:
As we investigate the “how’s” we begin to understand the “how’s” (the mechanics)
Principle
Which progression of scientific method:
Educated guess in what it is you’re observing
Hypothesis
Which progression of scientific method:
Something we understand so well we understand why and how something works that we can use it to manipulate the world and outcomes
Law
2 problems with a theory
1) incorrect use of word
2) no confidence because of misuse of word
What is a cell theory
Explains the definition of life
Natural selection, reproduction, and mutation, when talking about volition, would fall under what progression of the scientific method
Principle
The application of science for a practical purpose (technology)
Science and Society
Science and Society (which one):
Impartial and does not make ethical or moral judgements
Science
